      module mod_ioff 
      integer ifvv(16)  !fae aa bb
      integer ifvo(16)  !fme aa bb
      integer ifoo(16)  !fmi aabb
      integer ioi1(16)  !iijkl aaaa abab bbbb
      integer ioi2(16)  !iijka aaaa abab bbbb baba 
      integer ioi3(16)  !iabij aaaa abab bbbb
      integer ioi4(16)  !iiabj aaaa abab bbbb baba aabb
      integer ioi5(16)  !iabci aaaa abab bbbb baba 
      integer ioi6(16)  !iabcd aaaa abab bbbb
      integer ioiri_vv(16)  !rivv aa, bb 
      integer ioiri_vo(16)  !rivo aa, bb 
      integer ioiri_oo(16)  !rioo aa, bb 
      end module
        
